Questions on Algebra: Sequences of numbers, series and how to sum them answered by real tutors!

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Algebra: Sequences of numbers, series and how to sum them

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Question 96045: I want to neqotiate an allowance with my parents propose that I make 1 cent the first week 2 cents the 2nd week 4 cents the 3rd week and 8 cents the 4th week, etc how much will I make after 52 weeks which happens to be total weeks for a year How much will I make the last week
Click here to see answer by Earlsdon(4900)

Question 96167: If the first differences of a sequence are a constant 3 and the second term is 8 find the first 5 terms of the sequence.
PLEASE SOLVE IF POSSIBLE.
AND COULD YOU PLEASE EXPLAIN HOW
TO SOLVE SO I UNDERSTAND.
THANK YOU SO MUCH!:]
Click here to see answer by checkley71(8405)

Question 96182: the second and third terms of a sequence are 79 and 92. if the first differences are constant,then find the first 5 terms of the sequence.
Click here to see answer by checkley71(8405)

Question 96181: if the first differences of a sequence are a constant -7 and the third term is 15, find the first 5 terms of the sequence
Click here to see answer by checkley71(8405)

Question 96181: if the first differences of a sequence are a constant -7 and the third term is 15, find the first 5 terms of the sequence
Click here to see answer by stanbon(26268)

Question 97099: what comes next in the sequence.
1,3,7,13
Click here to see answer by stanbon(26268)

Question 97099: what comes next in the sequence.
1,3,7,13
Click here to see answer by checkley71(8405)

Question 97246This question is from textbook Algerbra1
: I am stumped, and my parents are not much help with this one. I know it should be simple. Here is the question.
Place grouping symbols to make the equation below true.
100-99*3+7*2+1/24=1This question is from textbook Algerbra1

Click here to see answer by mathslover(126)

Question 97390: Describe the pattern and list the next three numbers:
1, 8, 27, 64, _________, ________, _____________
Click here to see answer by jim_thompson5910(13787)

Question 97528: can you find the next 3 term in this sequence
1,5,4,20,19,_,_,_
Click here to see answer by checkley71(8405)

Question 97626: What three even consecutive integers sum up to 225?
I am totally stumped and would very much appreciate it if you can tell me what the 3 numbers are and how you came to this answer.
Thank You so very, very much
Click here to see answer by checkley71(8405)

Question 97661: exercise:
write a formula for the nth term of each arithmetic sequence:
1. -4,-2,0,2,4,...
2. 5,1,-3,-7,-11,..
how can i solve these?
can you help me?
and could you please explain it to me how it come so that i can understand it better...
thank you very much...
your responce will highly appreciated..
Click here to see answer by mathslover(126)

Question 97660: even though we have our books in algebra...
I do not understand what our teacher is tackling about... maybe he is so fast in discussing of the topics so that we can't relate to him...
In our homework... i don't know what i am going to do because this topic is not yet discuss unto us but i want to learned it so i can get high score during our quizzes...i just want to know if how come the answer goes like this...an=2n-6?
our problem or exercise needed to solve is that:
write a formula for the nth term of arithmetic sequence...
==> -4,-2,0,2,4,...
can you help me please... can you explain it to me?
it is not from the book... it's from our math teacher..

Click here to see answer by stanbon(26268)

Question 97907: At johns cafe the cooks use 1/3 cup of gravy on each serving.How many servings can he make out of 12 cups?
Click here to see answer by coyote(32)

Question 98141This question is from textbook
: 2,20,10,100,50, This question is from textbook

Click here to see answer by edjones(3294)

Question 98329: hello math lovers...
i would like to thank our generous math tutors for helping me
to understand our lessons and homework...
by the way,
i just wanna ask for your help...
in our home work...we need to write the first five terms of the
arithmetic sequence whose nth term is given...
and for example the given are:
An=9+(n-1)4
An=7+(n-1)(-2)
An=-4+(n-1)3
An=-2+(n-1)(-3)
How can i solve these problems which have different signs..
with a negative & positive sign...
but the problem is that i have no idea on how to solve these problems...
can you help me? so i can understand it better and i can solve our exercises that are from our teacher....
can you explain it to me on how to get the answer or on how to solve these problem... your help or responce is very appreciated...
Click here to see answer by 303795(562)

Question 98328: 3n+3
Click here to see answer by checkley71(8405)

Question 98587This question is from textbook Algebra 2 with Trigometry
: find all sets of three consectutive positive odd integers whose sum is less than 20 but greater than 10.This question is from textbook Algebra 2 with Trigometry

Click here to see answer by checkley71(8405)

Question 98709: HELP PLEASE!!! - Don't think I get it
write the frist 6 terms of the sequence:
1.an = n^3-1 (first n is subscript)
2.an = (n-1)^2 (first n is subscrpt)
Also- I need help with summation notation:
4+ 8+ +12+ 16 + 20 - write in summation notation
-7-8-9-10-11 in summation
5/6+6/7+7/8+8/9+... summation notation
Thanks so very much

Click here to see answer by Adam(63)

Question 87312: I believe the answer is 208 but I want to check...
Find the sum of the first 10 terms of the series: 6.4, 3.2, 1.6, ...
Click here to see answer by edjones(3294)

Question 99888: find three consecutive whole numbers such that if three times the second is subtracted from the third that this will equal the first minus one hundred nine
Click here to see answer by edjones(3294)

Question 100044: What is the formula for this sequences of numbers?
60 50 40 30 20
Click here to see answer by Edwin McCravy(2922)

Question 100069: Need rule for nth term - HELP!!!
Okay
1/2,3,11/2,8,21/2.... what is the rule for the nth term
d = -12 and a1 (1 is subscrpt) =80 - what is the rule for the nth term
not sure of my answers
Thanks

Click here to see answer by Adam(63)

Question 100428: Find three consecutive integers if twice the middle integer is equal to the sum of the first and the third.
Click here to see answer by checkley71(8405)

Question 100630: HELP PLEASE!!
What is the rule for the nth term :
d = -12 and a(subscript 1) = 80
Thanks very much
llo
Click here to see answer by stanbon(26268)

Question 100631: HELP
Need the sum of the series for:
10
E 2/1
i-2
Using E because I can't find the summation notation symbol!!
Help

Click here to see answer by scott8148(3382)

Question 100998: What is the probability of drawing a yellow marble or a red marble from a bag containing 12 yellow marbles, 16 red marbles, and 15 green marbles?

Click here to see answer by doukungfoo(195)

Question 100999: Find the 37th term of the sequence 2,5,8,11,14,...
Then make a series of the sequence in above problem and identify it as geometric or arithmetic.
Click here to see answer by stanbon(26268)

Question 101125: 1,3,5,7,9,11,13,15,17,19 these are 10 numbers and there sum is 100 select 5 from these numbers and there sum is 50
Click here to see answer by bucky(1732)

Question 101820: solve for x
3(x+4)=18
Click here to see answer by MathLover1(1183)

Question 101824: solve for x
3x+2(4x-8)=17
Click here to see answer by MathLover1(1183)

Question 101823: solve for x
3x+5=x+7
Click here to see answer by MathLover1(1183)

Question 101825: solve for x
2x+1 over 5 = x-6 over 2
Click here to see answer by doukungfoo(195)

Question 101819: x over 4 minus 5 equals 3, solve for x
Click here to see answer by elima(1433)

Question 101822: solve for x
5x+3-x-7=20
Click here to see answer by elima(1433)

Question 101976: Find the 37th term of the sequence 2,5,8,11,14,... My answer = 110
My question is that I need to make a sequence of the above problem and identify it as geometric or arithmetic.

Click here to see answer by stanbon(26268)

Question 102117: The following is my homework. I have no idea how to do it.:
44,37,30-find the 37th term and the pattern. Well the pattern is -7.
5,8,11-find the 28th term and the pattern. Well the pattern is +3.
3,6,12-find the 12th term and the pattern. Well the pattern is *2.
1 3/4,3 1/2, 7, 14-find the 15th term and the pattern. Well the pattern is *2.
Please help me!
Click here to see answer by stanbon(26268)

Question 102288: -3,5,-4,8,-6,10,-5
I need to find the sigma for this set of numbers
Thank you
Click here to see answer by stanbon(26268)

Question 102310: -12x+8>-16
Click here to see answer by edjones(3294)

Question 102345: I need help with the following problem:
In the following sequence, what could be the next term? 1, 4, 27, 256, ... why is it the next term?
Any explanation would be helpful.
Thanks in advance.
Click here to see answer by ankor@dixie-net.com(6693)

Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215